Messages in this thread | | | Date | Tue, 31 Oct 2006 01:42:43 -0800 | From | Andrew Morton <> | Subject | Re: [ckrm-tech] RFC: Memory Controller |
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On Tue, 31 Oct 2006 14:49:12 +0530 Balbir Singh <balbir@in.ibm.com> wrote:
> The idea behind limiting the page cache is this > > 1. Lets say one container fills up the page cache. > 2. The other containers will not be able to allocate memory (even > though they are within their limits) without the overhead of having > to flush the page cache and freeing up occupied cache. The kernel > will have to pageout() the dirty pages in the page cache.
There's a vast difference between clean pagecache and dirty pagecache in this context. It is terribly imprecise to use the term "pagecache". And it would be a poor implementation which failed to distinguish between clean pagecache and dirty pagecache.
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